Jump to content
UKV - The Place for Precision Rifle Enthusiasts
Sign in to follow this  
Lukas_K

338LM - 250gr velocity loads

Recommended Posts

As stated, if velocity is the goal with a 250gr bullet from a 28" barrell, what powders would give best results? I'm thinking N570, RS80... But aren't they too slow for this bullet weight already? I'll be happy if I can hit 3000fps reliably without overpressure.

Share this post


Link to post
Share on other sites

Bleeding hell , I would be happy with 3000fps ¬†but I think I would have to mallet my Aw bolt open after every shotūüė≥

I think the army get away with it by using new brass (obviously) all the timeūüėŹ

Share this post


Link to post
Share on other sites

I think you'd be over optimistic getting 3000fps from a 28" barrel without running into serious over pressure.

I think you're also likely to completely kane your barrel if you continue down the max velocity route. It seems to be common amongst many Americans who seem fixated on chasing highest velocities possible. I guess that's ok if you don't mind replacing barrels on a regular basis - they are a lot cheaper over there, less so here. 

If you take the advice of many of the top shooters, they favour top accuracy over top velocity. I'd consider finding the best accuracy load in your rifle, not the fastest.

Just my two pennies worth.

Share this post


Link to post
Share on other sites

I've seen 3000fps chronied using 250gr lockbases..

Seen some tight bolts too

Share this post


Link to post
Share on other sites

95g of N570 gives me 2950 with 250g Scenars....30 inch barrel......no pressure issues....normal caveats of course.

Share this post


Link to post
Share on other sites

Well the usual fears and caveats as stated above, I know of. But keeping to the old ways is not how the progress happens :)

DaveT: 2950 is lovely, therefore I suppose you don¬īt find N570 overly slow for the bullet weigth/case volume combination? Have you tried RS80?¬†

Share this post


Link to post
Share on other sites

I load 95gn of N570  with a 250 Scenar using a Ruag case. That load gives me around 2900-2950fps, I can't remember the exact number. This is out of my bog standard TRG42.   

Share this post


Link to post
Share on other sites

Not tried RS80.......N570 works just fine.

Share this post


Link to post
Share on other sites

Blimey- I chronoed some .338 in my AX last weekend

250gr lock base with 87 gr of N165 was a stout load (find a load that suits you don't use my data) produced only 2750fps but it should reach the mile.......I hope

i am not sure that N165 is the powder to use, H4350 produced near the same velocity with a 225gr Hornady and was much nicer to shoot, perhaps I will go back to the H4350???

any comments?

Share this post


Link to post
Share on other sites

I think RS 60 will get you the 3000fps.I am sure a mate used it in his to run the 300gr scenars 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

RifleMags_200x100.jpg

Northallerton NSAC shooting.jpg

border_ballistics_UKV_ad.jpg

dolphin button4 (200x100).jpg

CASEPREP_FINAL_YELLOW_hi_res__200_.jpg

rovicom200.jpg

BHTargets200.jpg

Lumensmini.png

CALTON MOOR RANGE (2) (200x135).jpg

bradley1 200.jpg

NVstore200.jpg

Danny Trowsdale 200.png

safeshot 200.jpg

tacfire 200.jpg

blackrifle.png

jr_firearms_200.gif

valkyrie 200.jpg

tab 200.jpg

 

 



×

Important Information

By using this site, you agree to our Terms of Use and Privacy Policy